fix(CI): replace runners-privilegedescalation with ubuntu-latest

Updates all workflow files and actionlint config to use ubuntu-latest
instead of the deprecated runners-privilegedescalation self-hosted runner.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

.github/workflows/plugin-release.yaml

@@ -35,7 +35,7 @@ concurrency:
 
 jobs:
   check-secrets:
-    runs-on: runners-privilegedescalation
+    runs-on: ubuntu-latest
     outputs:
       ready: ${{ steps.check.outputs.ready }}
     steps:
@@ -61,7 +61,7 @@ jobs:
   check-token-permissions:
     needs: check-secrets
     if: needs.check-secrets.outputs.ready == 'true'
-    runs-on: runners-privilegedescalation
+    runs-on: ubuntu-latest
     outputs:
       has_write: ${{ steps.check.outputs.has_write }}
     steps:
@@ -101,7 +101,7 @@ jobs:
   check-tag:
     needs: check-secrets
     if: needs.check-secrets.outputs.ready == 'true'
-    runs-on: runners-privilegedescalation
+    runs-on: ubuntu-latest
     outputs:
       skip: ${{ steps.check.outputs.skip }}
     steps:
@@ -121,7 +121,7 @@ jobs:
   release:
     needs: [ci, check-tag, check-secrets, check-token-permissions]
     if: needs.check-secrets.outputs.ready == 'true' && needs.check-tag.outputs.skip != 'true' && needs.check-token-permissions.outputs.has_write == 'true'
-    runs-on: runners-privilegedescalation
+    runs-on: ubuntu-latest
     timeout-minutes: 10
 
     steps: